Kusumayudha, Sari Bahagiarti (2014) MOUNT MERAPI ACTIVITY 2006: ITS IMPACT ON GROUNDWATER ENVIRONMENT. In: The 14th International Congress of Women Engineers and Scientists, 15 - 18 July, 2008, Lille, France.
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Abstract
During may to June 2006, Mount Merapi, that is located in Central Java, Indonesia has erupted. As we may know, Merapi belongs to one of the most active volcanoes on the world. It is characterized by a very specific type of eruption. Magma of Merapi is very viscous, low gas pressure, and low mobility. When the magma extrudes, it will be accummulated on the vent, forming such a dome. The dome get bigger with time until exceeding its bearing capacity. Due to new magma extrusion, triggered by such vigrations for example earthquake, lead by gravitational force, the dome or apart of it will collapse, forming nuee ardentes. Nuee ardentes occurred on 14th June 2006 was the biggest one during 2006-2007 activity period of Merapi. It reached 7 km distant to the southeast direction. A tourist object, namely Kaliadem, in the Cangkringan District was buried by pyroclastic deposits more than 3 m thick in average. Two volunteers were assassinated in the bunker. Ordinary, the primary activity of Merapi will be followed by the secondary threat, i.e. lahar. Lahar is volcanic mud flow. It is formed when pyroclastic deposits on the upper flank become wet, denser, and heavy, flowing through river valleys down slope. Lahar is very destructive to environment. There were some springs disappear, and groundwater composition change after 2006 Merapi eruption. Key words: Mount Merapi, eruption, nuee ardentes, lahar, groundwater
| Item Type: | Conference or Workshop Item (Paper) |
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| Subjects: | Q Science > QE Geology |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Physics |
| Depositing User: | SARI BAHAGIARTI KUSUMAYUDHA |
| Date Deposited: | 05 Jul 2017 08:00 |
| Last Modified: | 05 Jul 2017 08:00 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/9661 |
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